Light guide module, vehicle lamp and vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEEPAL AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
Smart Images
Figure CN224534083U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting technology, and more particularly to a light guide module, automotive lighting, and a vehicle. Background Technology
[0002] As a core component within a vehicle headlight, the light guide alters the light transmission path. The light guide includes a first light guide post, which directs light from the light source to the outside of the headlight and allows multiple beams of light to be emitted in roughly the same direction. In related technologies, the first light guide post is arranged according to the external shape of the light guide. This arrangement results in uneven distribution of the first light guide post, leading to uneven brightness across different areas of the light guide and a poor visual effect when the headlight is illuminated. Utility Model Content
[0003] The purpose of this application is to provide a light guide module, a vehicle headlight, and a vehicle, so that the brightness of different areas on the light guide is more uniform, thereby improving the overall optical quality and visual effect of the vehicle headlight.
[0004] A light guide module includes: a light guide body, which includes an incident light surface and an exit light surface arranged opposite to each other, the light guide body forming a preset channel, the center line of the preset channel being perpendicular to both the incident light surface and the exit light surface; a plurality of first light guide pillars are arranged on the exit light surface, the plurality of first light guide pillars are arranged in an array on the exit light surface, and the plurality of first light guide pillars are evenly distributed on the exit light surface.
[0005] By arranging multiple first light guide pillars in an array on the light-emitting surface of the light guide, and ensuring that the number of first light guide pillars per unit area on the light-emitting surface is the same, and that the gap between adjacent first light guide pillars is also the same, the brightness at various positions on the light-emitting surface becomes more uniform, and the brightness in different areas of the light guide becomes more uniform, thereby improving the overall optical quality and visual effect of the vehicle headlight.
[0006] Optionally, the first light guide post includes a first sub-light emitting surface facing away from the light guide body, and the first sub-light emitting surface is a spherical surface convex in the direction away from the light guide body. This convex spherical surface can change the emission direction of light, so that the light is emitted along the centerline of the first light guide post.
[0007] Optionally, the light guide module is applied to a vehicle, and in the vertical direction, the center line of the first light guide column has a first angle with the length direction of the vehicle, the first angle being greater than 0° and less than or equal to 15°.
[0008] This design ensures that the first light-emitting surface is not entirely oriented along the length of the vehicle, and the first light guide is tilted upwards at a certain angle. This allows the human eye to receive more light when observing the headlights from below. In other words, a portion of the light emitted along the length of the vehicle is directed upwards, resulting in more uniform illumination and a better overall visual effect when the headlights are on.
[0009] Optionally, the light guide module is applied to a vehicle, and on a horizontal plane, the centerline of the first light guide column has a second angle with the length direction of the vehicle, the second angle being greater than 10° and less than or equal to 35°.
[0010] This design ensures that the first light-emitting surface is not entirely oriented towards the length of the vehicle. On the horizontal plane, the centerline of the first light guide column is at a certain angle to the length of the vehicle, allowing the human eye to receive more light when observing the headlights from the side of the vehicle. In other words, a portion of the light emitted along the length of the vehicle is directed outwards, resulting in more uniform illumination and a better overall visual effect when the headlights are on.
[0011] Optionally, a first light-blocking structure is provided on the inner wall of the preset channel. This structure can block light from escaping through the inner wall of the preset channel, thus preventing stray light.
[0012] Optionally, the light guide includes an outer surface located between the light-incident surface and the light-outceasing surface. The outer surface is located outside the preset channel, and a second light-blocking structure is provided on the outer surface. This further blocks light from escaping through the outer surface, preventing stray light from being generated.
[0013] Optionally, a plurality of second light guide pillars are provided on the light incident surface. The plurality of second light guide pillars are arranged in an array on the light incident surface and are evenly distributed on the light incident surface. Each second light guide pillar includes a first sub-light incident surface that is away from the light guide body. The first sub-light incident surface is a spherical surface that protrudes in the direction away from the light guide body.
[0014] By evenly distributing multiple second light guide pillars on the light-incident surface of the light guide, and providing a spherical surface protruding away from the light guide on each second light guide pillar as a first sub-light-incident surface, the first sub-light-incident surface can control the direction of light, ensuring that most light enters the light-incident surface and then exits along the centerline of the light guide to reach the light-out surface. This reduces the amount of light hitting the inner wall of the preset channel, reduces stray light generation and light source waste, and further improves the light emission uniformity of the light guide.
[0015] Optionally, the light guide module also includes a light homogenizer and a light shield. The light homogenizer is positioned facing the light incident surface and is used to disperse the light rays incident on the light incident surface. The light shield and the light homogenizer are an integral structure, with the light shield extending into the preset channel and used to prevent light from passing through.
[0016] A light diffuser can disperse light, making it more uniform, while a light shield can prevent light from escaping from the inner surface of a preset channel. Integrating the light shield and light diffuser into a single structure can simplify the components inside the headlight.
[0017] A vehicle headlight includes a bracket, a light-emitting device, a transparent cover, and the aforementioned light guide module. The light-emitting device is mounted on the bracket, the light guide module is mounted on the light-emitting side of the light-emitting device, the transparent cover is mounted on the light-emitting side of the light guide module, and the transparent cover is connected to the bracket.
[0018] The vehicle lamp provided in this application includes the light guide module in the above embodiments, and therefore can achieve the same technical effect and solve the same technical problem.
[0019] A vehicle includes: a body and the aforementioned headlights, the headlights being disposed at the front end of the body.
[0020] The vehicle provided in this application embodiment includes the headlights in the above embodiments, thus achieving the same technical effect and solving the same technical problem. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of the light guide module provided in the embodiments of this application;
[0023] Figure 2 for Figure 1 A first-view schematic diagram of the overall structure of the light guide in the image;
[0024] Figure 3 This is a schematic diagram of the arrangement of the first light guide pillars in a light guide body in a related technology;
[0025] Figure 4 This is an exploded view of the vehicle headlight structure provided in an embodiment of this application;
[0026] Figure 5 for Figure 1 A schematic diagram of the arrangement of the first light guide pillars in the light guide body;
[0027] Figure 6 for Figure 1 A second-view schematic diagram of the overall structure of the light guide in the middle;
[0028] Figure 7 for Figure 5A schematic diagram showing the first light guide column tilted vertically relative to the length direction of the vehicle.
[0029] Figure 8 for Figure 5 A schematic diagram showing the first light guide column tilted relative to the length of the vehicle on a horizontal plane.
[0030] Reference numerals: 11, First region; 12, Second region; 100, Light guide; 110, Light emitting surface; 120, Preset channel; 130, First light guide column; 130a, First sub-light emitting surface; 140, Outer surface; 150, First light-blocking structure; 210, Light diffuser; 220, Light shield; 300, Support; 400, Light-emitting device; 500, Transparent cover; 600, Decorative part; 700, Reflector bowl. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0032] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0033] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines or channels, the terms "connection" and "linking" used in the embodiments of this application have the meaning of establishing electrical conductivity. The specific meaning needs to be understood in conjunction with the context.
[0035] Vehicle lights are a crucial component of the vehicle's lighting system. Through technological iterations from bulb-type light sources such as halogen and incandescent lamps to LED (Light Emitting Diode) light sources, significant improvements in lighting performance have been achieved. The light guide, as a core component within the vehicle light, plays a vital role in uniform light emission. Light guides are typically made of polycarbonate material and molded using an injection molding process.
[0036] See Figures 1-2 The light guide 100 provided in this application embodiment has an irregular shape. For example, the light guide 100 includes a first horizontal segment, a second horizontal segment, and a vertical segment, and rounded corners are provided between the first horizontal segment and the vertical segment, as well as between the second horizontal segment and the vertical segment. In other words, the shape of the light guide 100 is a "C" shape. It should be noted that the overall shape of the light guide 100 can also be other shapes, and this application embodiment does not limit this.
[0037] See Figure 3 and Figure 5 The light guide 100 is provided with a first light guide post 130, which guides light from the light source to the outside of the headlight and allows multiple beams of light to be emitted in roughly the same direction. The human eye is more receptive to the light emitted from the first light guide post 130; therefore, the portion of the first light guide post 130 is relatively bright, while the gap between two adjacent first light guide posts 130 is relatively dark. In related technologies, the first light guide posts 130 are arranged according to the external shape of the light guide 100. For example, if the light guide 100 is C-shaped, multiple first light guide posts 130 are arranged in multiple rows, with each row of multiple first light guide posts 130 arranged along a C-shape, and each row of multiple light guides 100 forming a C-shape.
[0038] However, this arrangement results in an uneven distribution of the first light guide pillars 130. In other words, the gaps between adjacent first light guide pillars 130 are different; some areas have a denser distribution of the first light guide pillars 130, while others have a sparser distribution. See [link / reference] Figure 3 For example, in the first region 11, which is a "C"-shaped corner, the first light guide pillars 130 are arranged relatively densely, resulting in more concentrated light and higher luminous intensity per unit area. In the second region 12, the first light guide pillars 130 are arranged relatively sparsely, meaning that the luminous intensity per unit area in the second region 12 is weaker. Therefore, the brightness of different areas on the light guide 100 is not uniform, resulting in poor visual effect when the headlights are on.
[0039] This application discloses a vehicle, including but not limited to sedans, SUVs, and urban SUVs, etc., and this application does not specifically limit the structural form of the vehicle. The vehicle includes a body, engine, chassis, electrical equipment, and headlights, etc. In the embodiments of this application, the headlights are mounted on the front of the body. Exemplarily, the headlights in the embodiments of this application can be marker lights, license plate lights, etc. Marker lights can improve visibility in the driving environment by displaying the vehicle's outline, thereby reducing the risk of traffic accidents. License plate lights are lighting devices installed near the front and rear license plates of the vehicle, used to ensure that the license plates are clearly visible at night or in low light conditions. The headlights provided in the embodiments of this application can also be other types of headlights, such as high beams, low beams, etc., and this application does not limit them.
[0040] See Figure 4 The vehicle light provided in this application includes a bracket 300, a light-emitting device 400, a transparent cover 500, and a light guide module. The light-emitting device 400 is disposed on the bracket 300, the light guide module is disposed on the light-emitting side of the light-emitting device 400, and the transparent cover 500 covers the light-emitting side of the light guide module. The transparent cover 500 is connected to the bracket 300.
[0041] Understandably, the bracket 300 is mounted on the vehicle body, the transparent cover 500 is fastened to the bracket 300, the transparent cover 500 and the bracket 300 form a space, and the light-emitting device 400, the transparent cover 500 and the light guide module are located in the space.
[0042] For example, the transparent cover 500 is made of plastic. The transparent cover 500 has the function of transmitting light and can protect the internal structure of the vehicle headlight. The light generated by the light-emitting device 400 is emitted from the transparent cover 500 through the light guide module.
[0043] For example, the light-emitting device 400 is an LED light source, which is disposed on a circuit board and is a point light source.
[0044] For example, the vehicle headlight also includes a decorative element 600, which is disposed on the outside of the light guide module. The decorative element 600 serves to fix and support the light guide module and to enhance its appearance.
[0045] For example, it also includes a reflector bowl 700, which typically adopts a parabolic surface or mirror structure. The surface coating can control the light reflection angle and scattering mode to ensure that the light beam is distributed as needed, converting the point light source into a parallel light beam and emitting it, thereby achieving uniform illumination of the light.
[0046] See Figure 2 and Figure 5 The light guide module provided in this application embodiment includes: a light guide body 100, the light guide body 100 including a light-incident surface and a light-exit surface 110 disposed opposite to each other, the light guide body 100 forming a preset channel 120, the center line of the preset channel 120 being perpendicular to both the light-incident surface and the light-exit surface 110; a plurality of first light guide pillars 130 are disposed on the light-exit surface 110, the plurality of first light guide pillars 130 are arranged in an array on the light-exit surface 110, and the plurality of first light guide pillars 130 are evenly distributed on the light-exit surface 110.
[0047] Understandably, after light enters from the light-incident surface, it passes through the light guide 100 and exits from the first light guide post 130 on the light-exiting surface 110. For example, the light guide 100 is C-shaped and has a centroid. The center line of the preset channel 120 passes through the centroid of the light guide 100 and is perpendicular to the center line of the light-incident surface and the light-exiting surface 110. The center line of the first light guide post 130 can be set parallel to the center line of the preset channel 120.
[0048] For example, the light guide 100 is tilted as a whole within the headlight to achieve different styling requirements. Specifically, the tilt angle between the center line of the preset channel 120 and the horizontal plane can be 40°-70°, such as 50°, 60°, etc. This embodiment does not limit the specific tilt angle.
[0049] For example, the first light guide post 130 is a truncated pyramid structure, which has a top surface, a bottom surface, and a side surface. The top surface and the bottom surface are both squares, and the side length of the bottom surface is greater than the side length of the top surface. The bottom surface is connected to the light-emitting surface 110 of the light guide body 100, and the side surface is trapezoidal and serves as a draft structure, which is beneficial for demolding of the injection mold.
[0050] For example, the center line of the first light guide post 130 is the line connecting the center of the top surface and the center of the bottom surface.
[0051] For example, in the embodiments of this application, uniform distribution means that the number of first light guide pillars 130 per unit area on the light-emitting surface 110 is the same. Multiple first light guide pillars 130 form multiple rows and columns, and the gap between adjacent first light guide pillars 130 in each row is the same, and the gap between adjacent first light guide pillars 130 in each column is also the same, that is, the gap between adjacent first light guide pillars 130 is the same.
[0052] By arranging multiple first light guide pillars 130 in an array on the light-emitting surface 110 of the light guide 100, and ensuring that the multiple first light guide pillars 130 are evenly distributed on the light-emitting surface 110, the number of first light guide pillars 130 per unit area on the light-emitting surface 110 is the same, and the gap between any two adjacent first light guide pillars 130 is also the same. This achieves a more consistent light emission effect across all positions on the light-emitting surface 110, resulting in more uniform brightness in different areas of the light guide 100, thereby improving the overall optical quality and visual effect of the vehicle headlight.
[0053] See Figure 2 and Figure 5 In some embodiments, the first light guide post 130 includes a first sub-light emitting surface 130a that is away from the light guide body 100, and the first sub-light emitting surface 130a is a spherical surface that protrudes in the direction away from the light guide body.
[0054] Understandably, the divergent light emitted from the point light source can converge into roughly parallel light rays after passing through the convex spherical surface, causing the light rays to be emitted along the center line of the first light guide post 130.
[0055] It is understandable that the gap between two adjacent first sub-light-emitting surfaces 130a is the outer peripheral surface of the first light guide post 130. This outer peripheral surface does not have the function of adjusting the direction of light, and the direction of the light emitted from this outer peripheral surface is difficult to determine. Therefore, the brightness of the first sub-light-emitting surface 130a perceived by the human eye is higher than that of the outer peripheral surface.
[0056] For example, the centerline of the first light guide column 130 faces the length direction of the vehicle, and the light rays are emitted along the length direction of the vehicle after passing through the first sub-light-emitting surface 130a.
[0057] For example, the first light-emitting surface 130a has four edges, and a spherical surface protruding away from the light guide is disposed on the four edges. The four edges are in the same plane, and the shape formed by the four edges is a square with a side length of 1mm.
[0058] See Figure 7 In some embodiments, the light guide module is applied to a vehicle, and in the vertical direction, the center line of the first light guide column 130 has a first included angle α with the length direction of the vehicle. The first included angle α is greater than 0° and less than or equal to 15°.
[0059] For example, in this embodiment, the first light guide column 130 is tilted as a whole in the vertical direction, and the angle between the center line of the first light guide column 130 and the length direction of the vehicle after tilting is the first included angle α.
[0060] Optical simulations and engineering practices have shown that when the first included angle α is within the aforementioned range, the light emission from all positions of the light guide 100 is more uniform when the headlight is illuminated. For example, the first included angle α can also be 3°, 4.5°, 6°, etc.
[0061] For example, when a person outside the vehicle observes the headlights from above at an angle downwards, for instance, when the angle between the line of sight of the person observing the headlights and the horizontal plane is 60°.
[0062] As described above, the first light-emitting surface 130a is not completely oriented towards the length of the vehicle, and the first light guide column 130 is tilted upwards at a certain angle. This allows the human eye to receive more light when observing the headlights from below. In other words, a portion of the light emitted along the length of the vehicle is directed upwards, resulting in more uniform illumination and a better overall visual effect of the headlights.
[0063] See Figure 8 In some embodiments, the light guide module is applied to a vehicle, and on a horizontal plane, the center line of the first light guide post 130 has a second included angle b with the length direction of the vehicle, the second included angle b being greater than 10° and less than or equal to 35°.
[0064] For example, in this embodiment, the first light guide column 130 is tilted as a whole on the horizontal plane, and the angle between the center line of the tilted first light guide column 130 and the length direction of the vehicle is the second included angle b.
[0065] For example, the centerline of the first light guide 130 is tilted outwards from the vehicle.
[0066] Optical simulations and engineering practices have shown that when the second included angle b is within the aforementioned range, the light emission from all positions of the light guide 100 is more uniform when the headlight is illuminated. For example, the second included angle b can also be 15°, 20°, 25°, etc.
[0067] For example, when a person observes the headlights from the side outside the vehicle, the angle between the line of sight of the person observing the headlights and the length direction of the vehicle is 30°.
[0068] As described above, the first light-emitting surface 130a is not completely oriented towards the length of the vehicle. On the horizontal plane, the centerline of the first light guide column 130 has a certain angle with the length of the vehicle, thus allowing the human eye to receive more light when observing the headlights from the side of the vehicle. In other words, a portion of the light emitted along the length of the vehicle is directed towards the outer side of the vehicle, resulting in more uniform illumination and a better overall visual effect of the headlights when they are lit.
[0069] For example, the light guide 100 has high light transmittance. The light guide 100 includes an outer surface 140 located between the light-incident surface and the light-exit surface 110. The outer surface 140 of the light guide 100 is provided with a decorative element 600. In other words, the decorative element 600 covers the outer surface 140 of the light guide 100. The decorative element 600 has a black high-gloss surface. If light is emitted from the outer surface 140 of the light guide 100, it will be reflected back into the interior of the light guide 100 after passing through the high-gloss surface of the decorative element 600, forming stray light and affecting the overall visual effect of the vehicle headlight.
[0070] See Figure 6 In some embodiments, a first light-blocking structure 150 is provided on the inner wall of the preset channel 120.
[0071] For example, the first light-blocking structure 150 can be a frosted structure, that is, the inner side of the light guide 100 is provided with a frosted structure, which can block light from being emitted through the inner wall of the preset channel 120 and avoid stray light.
[0072] See Figure 2 In some embodiments, the outer surface 140 is located outside the preset channel 120, and a second light-blocking structure is provided on the outer surface 140.
[0073] For example, in this embodiment, the outer surface 140 is the outer side surface of the "C"-shaped light guide 100.
[0074] For example, the second light-blocking structure can also be a frosted structure, which can further block light from being emitted through the outer surface 140 to avoid generating stray light.
[0075] In addition, the first light-blocking structure 150 and the second light-blocking structure can also block the internal structure of the headlight, so that the internal structure of the headlight cannot be seen when the headlight is off, thus achieving a good visual effect even when the headlight is off.
[0076] In some embodiments, a plurality of second light guide pillars are provided on the light incident surface, the plurality of second light guide pillars are arranged in an array on the light incident surface, and the plurality of second light guide pillars are evenly distributed on the light incident surface. Each second light guide pillar includes a first sub-light incident surface that is away from the light guide body 100, and the first sub-light incident surface is a spherical surface that protrudes in the direction away from the light guide body.
[0077] For example, the first light-incident surface has four edges, and the protruding spherical surface is disposed on the four edges. The four edges are in the same plane, and the shape formed by the four edges is a square with a side length of 0.5 mm.
[0078] By uniformly distributing multiple second light guide pillars on the light-incident surface of the light guide 100, and providing a spherical surface protruding away from the light guide on each second light guide pillar, which serves as the first sub-light-incident surface, the direction of light can be controlled. This ensures that most light enters the light-incident surface and then exits along the centerline of the light guide 100, reaching the light-out surface 110. This reduces the amount of light incident on the inner wall of the preset channel 120, reduces stray light generation, and reduces light source waste, thereby further improving the light emission uniformity of the light guide 100.
[0079] See Figure 4 In some embodiments, the light guide module further includes a light diffuser 210 and a light shield 220. The light diffuser 210 is disposed facing the light incident surface and is used to disperse the light incident on the light incident surface. The light shield 220 is an integral structure with the light diffuser 210 and extends into the preset channel 120. The light shield 220 is used to prevent light from passing through.
[0080] For example, light can pass through the light homogenizer 210, which is milky white, and the light shield 220 is black. The light homogenizer 210 and the light shield 220 can be made into an integral structure using a two-color injection molding process. The light shield 220 protrudes from the side of the light homogenizer 210 near the light guide 100 and can prevent light from escaping from the inner surface of the preset channel 120.
[0081] For example, the light diffuser 210 may be provided with microstructures, which may be numerous granular structures, grooves or protrusions, thereby scattering the light and making the light more uniform.
[0082] Understandably, integrating the light shield 220 and the light diffuser 210 into a single structure simplifies the components within the headlight.
[0083] For example, the milky white diffuser can also shield the internal structure of the headlights, thereby ensuring a good visual effect when the headlights are off.
[0084] It is worth noting that when the headlights are off, because the first sub-light-emitting surface 130a has a spherical structure, viewing objects inside the light guide 100 through a spherical structure will cause distortion. Therefore, it is difficult for the human eye to see the internal structure of the light guide 100 clearly through the first sub-light-emitting surface 130a. However, the portion between adjacent first sub-light-emitting surfaces 130a, i.e., the outer peripheral surface of the light guide 100, has a planar structure, and the human eye can see the internal structure of the headlights more clearly through the outer peripheral surface of the light guide 100.
[0085] See Figure 3In related technologies, the gap between two adjacent first light guide pillars 130 is relatively large. That is to say, the area between two adjacent first light-emitting surfaces 130a is larger, allowing the human eye to see a larger area of the internal structure of the headlight. Therefore, the human eye can more easily see the internal structure of the headlight, resulting in a poor visual effect of the headlight when it is off.
[0086] This application embodiment optimizes the arrangement of the first light guide column 130, making the gap between two adjacent first light guide columns 130 smaller and more uniform, allowing the human eye to see a smaller area of the internal structure of the headlight, that is, the human eye is not easily able to see the internal structure of the headlight, thereby making the visual effect of the headlight in the off state better.
[0087] It should be noted that if the tilt angle of the light guide 100 is too large, for example, if the angle between the light-emitting surface 110 of the light guide 100 and the ground is 45°, the internal structure of the lamp is more easily seen. To avoid this problem, the light guide 100 in related technologies often adopts a regular geometric shape, but this limits the diversity of the appearance of the vehicle lamp. The embodiment of this application solves the problem of uneven light emission of irregularly shaped light guides 100 by uniformly arranging the first light guide pillars 130 on the light guide 100, breaking the limitation that the light guide 100 can only be made into a regular shape, and providing more possibilities for subsequent styling design.
[0088] In some embodiments, light guides 100 of other shapes may also be provided on the vehicle body, such as cuboid light guides 100. By setting the direction of the center line of the first light guide post 130 on each light guide 100 and the microstructure parameters of the first light guide post 130, such as the density and size of the arrangement of the first light guide posts 130, optical differences caused by light guides 100 of different shapes can be eliminated, so that the light output of different light guides 100 is uniform and the color temperature is consistent, thereby improving the quality of the vehicle lights.
[0089] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0090] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A light guide module, characterized in that, include: A light guide includes an incident light surface and an exit light surface arranged opposite to each other. The light guide forms a preset channel, and the center line of the preset channel is perpendicular to both the incident light surface and the exit light surface. A plurality of first light guide pillars are arranged on the exit light surface in an array and are evenly distributed on the exit light surface.
2. The light guide module according to claim 1, characterized in that, The first light guide post includes a first sub-light emitting surface that is away from the light guide body, and the first sub-light emitting surface is a spherical surface that protrudes in the direction away from the light guide body.
3. The light guide module according to claim 1, characterized in that, The light guide module is applied to a vehicle. In the vertical direction, the center line of the first light guide column has a first angle with the length direction of the vehicle. The first angle is greater than 0° and less than or equal to 15°.
4. The light guide module according to claim 3, characterized in that, The light guide module is applied to a vehicle. On a horizontal plane, there is a second angle between the centerline of the first light guide column and the length direction of the vehicle. The second angle is greater than 10° and less than or equal to 35°.
5. The light guide module according to claim 1, characterized in that, A first light-blocking structure is provided on the inner wall of the preset channel.
6. The light guide module according to claim 1, characterized in that, The light guide includes an outer surface located between the light-incident surface and the light-outceasing surface. The outer surface is located outside the preset channel, and a second light-blocking structure is provided on the outer surface.
7. The light guide module according to claim 1, characterized in that, A plurality of second light guide pillars are provided on the light incident surface. The plurality of second light guide pillars are arranged in an array on the light incident surface and are evenly distributed on the light incident surface. Each second light guide pillar includes a first sub-light incident surface that is away from the light guide body. The first sub-light incident surface is a spherical surface that protrudes in the direction away from the light guide body.
8. The light guide module according to claim 1, characterized in that, The light guide module also includes a light homogenizer and a light shield. The light homogenizer is disposed facing the light incident surface and is used to disperse the light rays incident on the light incident surface. The light shield is an integral structure with the light homogenizer and extends into the preset channel to prevent light rays from passing through.
9. A vehicle light, characterized in that, The device includes a bracket, a light-emitting device, a transparent cover, and a light guide module as described in any one of claims 1-8. The light-emitting device is disposed on the bracket, the light guide module is disposed on the light-emitting side of the light-emitting device, the transparent cover is disposed on the light-emitting side of the light guide module, and the transparent cover is connected to the bracket.
10. A vehicle, characterized in that, include: The vehicle body and the headlights as described in claim 9, wherein the headlights are disposed at the front end of the vehicle body.